• Model:RTRDU2.0

RTRDU 3 Phase Trickle & Boost 5 Step Speed Controller - 2 Amps

£ 778.28 (excl. VAT)

£ 933.94 (inc. VAT)


A three-phase transformer which controls the fan speed by altering the supply voltage in five fixed steps. The steps are adjusted manually, using the control knobs on the front of the unit.

There are two control knobs: one for higher fan speeds and one for lower fan speeds. Switching between the high and low settings is done by an external change-over contact, which could be a thermostat or a timer.

An integral motor protection device is included which cuts the supply voltage to the fan if the thermal contact in the fan motor is activated. The unit is reset by turning the switch to 0 for 10 seconds, after which the unit restarts.

Input terminals for room thermostat RT cuts supply voltage to the fan when the circuit is broken. Terminals are linked before delivery. The indicator lamp on the front shows when the transformer is in operation.

The transformer has 230V terminals for operating dampers, electric heater batteries or other external equipment. These terminals have no current when the transformer switch is in position 0, or when the TK or RT input is open. Supply voltage: 400V 50/60Hz.
PDF Files


Data sheet

1 x FRQ-10A V2 Inverter Speed controller1 x Transformer Speed Control - RTRE- 7.0Amp1 x Vertical Cowl - RAV630/7101 x Multiflow SMB550/4-1AC1 x JBR N - 435 Flange to suit CRHB roof fans1 x Quietflow SQSDCV400-1ECL - Centrifugal Box Fan1 x Quietflow SQS400-1ECL - Centrifugal Box Fan1 x Acoustic Powerbox-400mm & Inverter (Single Phase) - PB4001401 x Acoustic Box Fans (Inline) - CAB-400 RE1 x Shoed T Piece Un-Equal -450mm-315mm1 x KVK Slim 400 - Low profile Semi Acoustic Box Fan1 x ACQ-400-14D Acoustic Inline Box Fan1 x Singleflow SSDL400-1EC1 x KVK SLIM 400 EC - Centrifugal Circular Duct Fan1 x CAB-400 ECOWATT Energy Efficient Acoustic Box Fan1 x Elta Variable Speed Drive IP66 - 7.5KW1 x Elta Variable Speed Drive IP66 - 2.2KW1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x FRQ5-4A V2 Inverter Speed Controller1 x FU 15 40 Frequency Inverter1 x FU 075 52 Frequency Inverter (IP20)1 x FU 22 25 Frequency Inverter1 x Frequency converter FU 075 14 - IP661 x Elta Variable Speed Drive IP66 - 0.75KW1 x Elta Variable Speed Drive IP66 - 1.5KW1 x Frequency converter RUCK - FU 075 201 x Elta Variable Speed Drive IP66 - 4.0KW1 x FRQ5-10A Inverter Speed controller1 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 5.5KW1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)1 x ELTA - Three Phase Transformer 3amps1 x ELTA - Three Phase Transformer 10amps1 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x Elta 10 Amp Electronic single phase speed controller.1 x Frequency converter RUCK - FU 075 211 x FU 22 04 Frequency Inverter1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x FU 075 04 Frequency Inverter (IP20)1 x NKS-D swirl diffuser v-300 x 300mm1 x ELTA - Single Phase Transformer 2amps1 x Circular Ceiling Diffuser - TST 1251 x PCA Diffuser - PCA-3151 x Electronic extractor fan speed controller - FSC 1.51 x Circular Ceiling Diffuser - TST 2001 x Balance S Diffuser - NO RING - 125mm1 x Circular Ceiling Diffuser - TST 1001 x EC6H - Reversible Group Fan Electronic Controller1 x Round ceiling diffuser 400mm1 x Curved Blade Grille 600x600 (2way blow)1 x 5-Speed Controller for use with Elta SAX Classic Fans1 x JSR 200 Painted RAL50181 x Circular Ceiling Diffuser - TST 1601 x Elta 6 Amp Electronic single phase speed controller with TK1 x ELTA - Single Phase Transformer 16amps1 x EFSC-3N- Single Phase Speed Control1 x Elta 3 Amp Electronic single phase speed controller with TK1 x Elta 3 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 8amps1 x Balance S Diffuser - NO RING - 100mm1 x Airvent ceiling fan controller1 x ELTA - Single Phase Transformer 12amps1 x Round ceiling diffuser 200mm1 x AIRVENT speed control - AIR4019611 x Round ceiling diffuser 300mm1 x ELTA - Single Phase Transformer 4amps1 x COM-31 x Round ceiling diffuser 250mm1 x Elta 6 Amp Electronic single phase speed controller.1 x Round ceiling diffuser 350mm1 x EFSC-6N- Single Phase Speed Control1 x PCA Diffuser - PCA-2501 x ELTA - Single Phase Transformer 10amps1 x Remote Timer Control - 13511 x Run On Timer - 5s - 4hrs - RT5A1 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan1 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans1 x Helios TSW 7.5 Amp Transformer speed controller1 x Helios TSW 0.3Amp Compact Transformer speed controller1 x Vent Axia ACM 150 inline mixed flow duct fan2 x Remote controller FLEX - for VEKO INT
Reviews
Duct Mounted Inline Filter - EU4
Duct Mounted Inline Filter - EU4
£ 44.99

Well made and robust, but it was not use for my application ...